# Thermalright Peerless Assassin 120 SE: specs and price

**Price (US):** $34.9 at thermalright.com, as of 2026-07-30. A sourced, dated price of record — other retailers (incl. Amazon) may be lower. Among the 14 cpu coolers we track it is the cheapest; category median $125.
**Brand:** Thermalright
**Released:** 2022
**Deskmark:** Gold Deskmark — pay-blind category standing 82/100, #2 of 14 in class (independent, computed from sourced data, never for sale).
**Price tracked since:** June 2026 (last change 2026-07-30: $31.41 → $34.9)

## Specifications

| Spec | Value |
| --- | --- |
| Price (US) | $34.9 |
| Brand | Thermalright |
| Released | 2022 |
| Type | air |
| Radiator or height (mm) | 155 mm |
| Fan count | 2 |
| Socket support | Intel LGA1851, LGA1700, LGA1200, LGA1151, LGA1155, LGA1156; AMD AM5, AM4 |
| Tdp rating (W) | — |
| Rgb | No |
| Noise dba max | 25.6 |

## Where it stands

At $35, the Thermalright Peerless Assassin 120 SE is the cheapest of the 14 CPU coolers we track, where the median is $125. On the spec sheet, its radiator or height of 155 mm is below the median of the 14, its fan count of 2 is below the median of the 14, and its noise dba max of 25.6 is below the median of the 14.

## Price over time

Since 2026-06-27, the Thermalright Peerless Assassin 120 SE's price has fallen 0.3%, from $35 to $34.90. The lowest we have recorded is $31.41 (2026-07-25). Its most recent move was on 2026-07-30: $31.41 → $34.90.

## What reviewers say

Only one whitelisted tester, Tom's Hardware, ran a hands-on lab review of this exact model. That single review is overwhelmingly positive: the best-performing air cooler it had tested, whisper-quiet, at roughly $36. It averaged 61 degrees C over ambient in a 200W Cinebench load and 64 degrees C over ambient in a 200W OCCT load, beating pricier coolers. No meaningful downsides beyond air-cooling's inherent power ceiling. (Based on 1 review, 1 lab-tested, 2022-09-27.)

Praised: Best-in-class air cooling performance for its class, beating pricier coolers at capped TDPs; Whisper-quiet acoustics; second-quietest air cooler tested at max fan speed; Exceptional value at roughly $36 for a dual-tower, dual-fan cooler.
Flagged: Cannot keep a 12900K under TjMax in uncapped Cinebench/OCCT without power limits, a ceiling shared by all air coolers tested.
Disagreement: Only one whitelisted hands-on review (Tom's Hardware) was found, so cross-source disagreement cannot be assessed; its verdict is unambiguously positive with no dissent to weigh against.
Sources: Tom's Hardware (2022-09-27, tomshardware.com)

## Frequently asked questions

**What do reviewers say about the Thermalright Peerless Assassin 120 SE?**

Only one whitelisted tester, Tom's Hardware, ran a hands-on lab review of this exact model. That single review is overwhelmingly positive: the best-performing air cooler it had tested, whisper-quiet, at roughly $36. It averaged 61 degrees C over ambient in a 200W Cinebench load and 64 degrees C over ambient in a 200W OCCT load, beating pricier coolers. No meaningful downsides beyond air-cooling's inherent power ceiling. Praised: Best-in-class air cooling performance for its class, beating pricier coolers at capped TDPs; Whisper-quiet acoustics; second-quietest air cooler tested at max fan speed; Exceptional value at roughly $36 for a dual-tower, dual-fan cooler. Flagged: Cannot keep a 12900K under TjMax in uncapped Cinebench/OCCT without power limits, a ceiling shared by all air coolers tested. (From 1 tester review, 1 lab-tested.)

**How much does the Thermalright Peerless Assassin 120 SE cost?**

The Thermalright Peerless Assassin 120 SE has a US price of $34.9, as of 2026-07-30.

**How does the Thermalright Peerless Assassin 120 SE compare on price?**

At $35, the Thermalright Peerless Assassin 120 SE is the cheapest of the 14 CPU coolers we track, where the median is $125.

**Has the Thermalright Peerless Assassin 120 SE's price dropped?**

Yes — since 2026-06-27 the Thermalright Peerless Assassin 120 SE has fallen 0.3%, from $35 to $34.9.

**What is the lowest price the Thermalright Peerless Assassin 120 SE has been?**

The lowest we have recorded for the Thermalright Peerless Assassin 120 SE is $31.41 on 2026-07-25.

**Is now a good time to buy the Thermalright Peerless Assassin 120 SE?**

The Thermalright Peerless Assassin 120 SE is currently $34.9; the lowest we have recorded is $31.41 (2026-07-25). Every price is dated, so you can judge it against its own history.

**When was the Thermalright Peerless Assassin 120 SE released?**

The Thermalright Peerless Assassin 120 SE was released 2022.

**What are the Thermalright Peerless Assassin 120 SE's key specs?**

Thermalright Peerless Assassin 120 SE (Thermalright): type air, radiator or height mm 155 mm, fan count 2, socket support Intel LGA1851, LGA1700, LGA1200, LGA1151, LGA1155, LGA1156; AMD AM5, AM4, rgb No. Full sourced spec sheet verified 2026-06-15.

Source: https://www.thermalright.com/product/peerless-assassin-120-se/ (thermalright.com, accessed 2026-06-15)
Corroboration: https://pcspecchart.com/pc_parts/cpu_cooler/97/ (accessed 2026-06-15)
Canonical: https://frontdeskreview.com/product/cpu-coolers/thermalright-peerless-assassin-120-se/
Cite: Per The Front Desk Review, the Thermalright Peerless Assassin 120 SE price of record was $34.9 as of 2026-07-30 — https://frontdeskreview.com/product/cpu-coolers/thermalright-peerless-assassin-120-se/
License: CC BY 4.0. Price history: https://frontdeskreview.com/data/price-history.jsonl